package com.itheima.admin.service.impl;

import cn.hutool.core.util.StrUtil;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.itheima.admin.dto.AdChannelPageRequestDto;
import com.itheima.admin.mapper.AdChannelMapper;
import com.itheima.admin.pojo.AdChannel;
import com.itheima.admin.service.AdChannelService;
import com.itheima.common.vo.PageResultVo;
import org.springframework.stereotype.Service;

import java.util.Date;

/**
 * @version 1.0
 * @description 说明
 * @package com.itheima.admin.service.impl
 */
@Service
public class AdChannelServiceImpl extends ServiceImpl<AdChannelMapper, AdChannel> implements AdChannelService {
    /**
     * 频道列表分页查询
     *
     * @param dto
     * @return
     */
    @Override
    public PageResultVo findPage(AdChannelPageRequestDto dto) {
        // 1. 构建分页参数设置, p1:页码，p2:大小
        IPage<AdChannel> pageInfo = new Page(dto.getPage(), dto.getSize());
        // 2. 构建查询条件
        LambdaQueryWrapper<AdChannel> lqw = new LambdaQueryWrapper<>();
        lqw.like(StrUtil.isNotEmpty(dto.getName()), AdChannel::getName, dto.getName());
        lqw.eq(null != dto.getStatus(), AdChannel::getStatus, dto.getStatus());
        // 3. 执行查询
        IPage<AdChannel> pageResult = page(pageInfo, lqw);
        System.out.println("pageResult==pageInfo:::" + (pageResult==pageInfo));
        // 4. 封装结果返回
        return PageResultVo.pageResult(dto.getPage(), dto.getSize(), pageInfo.getTotal(), pageInfo.getRecords());
    }

    /**
     * 添加频道
     *
     * @param adChannel
     */
    @Override
    public void add(AdChannel adChannel) {
        // 赋默认值
        adChannel.setCreatedTime(new Date());
        adChannel.setIsDefault(true);
        // 保存
        save(adChannel);
    }
}
